¶ Cifram si nil remanebit.
Put a cipher if nothing remains. ¶ Here he puttes þe secunde case, & hit is þis. yf it happe þat qwen þou hast draw on neþer figure out of a hier, & þere leue noȝt after þe subtraccioɳ, þus leaf 143 b. *þou schalt do. þou schalle do away þe hier figure & write þere a cifer, as Here is an example. lo an Ensampull 24
24 Take foure out of foure þan [leus] noȝt. þerefore do away þe hier 4 & set þere a cifer, þan take 2 out of 2, þan leues noȝt. do away þe hier 2, & set þere a cifer, and so worch whare so euer þis happe.
Sed si non possis a prima demere primam
Precedens vnum de limite deme sequente,
Quod demptum pro denario reputabis ab illo
Subtrahe totalem numerum quem proposuisti
Quo facto scribe super quicquid remanebit.
Suppose you cannot take the lower figure from the top one, borrow ten; Here he puttes þe thryd case, þe quych is þis. yf it happe þat þe neþer figure be more þen þe hier figure þat he schalle be draw out of. how schalle þou do. þus þou schalle do. þou schalle [borro] .1. oute of þe next figure þat comes after in þe same rewe, for þis case may neuer happ but yf þere come figures after. þan þou schalt sett þat on ouer þe hier figures hed, of the quych þou woldist y-draw oute þe neyþer figure yf þou haddyst [y-myȝt]. Whane þou hase þus ydo þou schalle rekene þat .1. for ten. take the lower number from ten; ¶. And out of þat ten þou schal draw þe neyþermost figure, And alle þat leues þou schalle add the answer to the top number. adde to þe figure on whos hed þat .1. stode. And þen þou schalle do away alle þat, & sett þere alle that arisys of the addicioɳ of þe ylke 2 figuris. And yf yt leaf 144 a. *happe þat þe figure of þe quych þou schalt borro on be hym self but 1. If þou schalt þat one & sett it vppoɳ þe oþer figuris hed, and sett in þat 1. place a cifer, yf þere come mony figures after. Example. lo an Ensampul. 2122
1134 take 4 out of 2. it wyl not be, þerfore borro one of þe next figure, þat is 2. and sett þat ouer þe hed of þe fyrst 2. & rekene it for ten. and þere þe secunde stondes write 1. for þou tokest on out of hym. þan take þe neþer figure, þat is 4, out of ten. And þen leues 6. cast to 6 þe figure of þat 2 þat stode vnder þe hedde of 1. þat was [borwed] & rekened for ten, and þat wylle be 8. do away þat 6 & þat 2, & sette þere 8, & lette þe neþer figure stonde stille. Whanne þou hast do þus, go to þe next figure þat is now bot 1. but first yt was 2, & þere-of was [borred] 1. How to ‘Pay back’ the borrowed ten. þan take out of þat þe figure vnder hym, þat is 3. hit wel not be. þer-fore [borowe] of the next figure, þe quych is bot 1. Also take & sett hym ouer þe hede of þe figure þat þou woldest haue y-draw oute of þe nether figure, þe quych was 3. & þou myȝt not, & rekene þat borwed 1 for ten & sett in þe same place, of þe quych place þou tokest hym of, a cifer, for he was bot 1. Whanne þou hast þus ydo, take out of þat 1. þat is rekent for ten, þe neþer figure of 3. And þere leues 7. leaf 144 b. *cast þe ylke 7 to þe figure þat had þe ylke ten vpon his hed, þe quych figure was 1, & þat wol be 8. þan do away þat 1 and þat 7, & write þere 8. & þan wyrch forth in oþer figuris til þou come to þe ende, & þan þou hast þe do. Versus.
¶ Facque nonenarios de cifris, cum remeabis
¶ Occurrant si forte cifre; dum dempseris vnum